Patents by Inventor Robert Fedosejevs

Robert Fedosejevs has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus and method for measuring the quantity and optical parameters of a liquid in a container using the principle of optical low coherence reflectometry
    Patent number: 9239226
    Abstract: An apparatus for measuring the quantity and optical parameters of a liquid in a container using the principle of optical low coherence reflectometry is provided, the apparatus having: a source arm with a low coherence light source; a reference arm including a reference lens, a mirror, means for adjusting the distance between the reference lens and the mirror and means for measuring the distance between the reference lens and the mirror; a test arm with a test lens; means for dividing the output of the source arm between the test arm and the reference arm; means for combining light reflected back into the reference arm and the test arm to create an interference signal; and means for detecting and analyzing the interference signal.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 19, 2016
    Assignee: The Governors of the University of Alberta
    Inventors: Robert Fedosejevs, Ilya Utkin, Sunita Sindhu, Ying Yin Tsui
  • APPARATUS AND METHOD FOR MEASURING THE QUANTITY AND OPTICAL PARAMETERS OF A LIQUID IN A CONTAINER USING THE PRINCIPLE OF OPTICAL LOW COHERENCE REFLECTOMETRY
    Publication number: 20140204390
    Abstract: An apparatus for measuring the quantity and optical parameters of a liquid in a container using the principle of optical low coherence reflectometry is provided, the apparatus having: a source arm with a low coherence light source; a reference arm including a reference lens, a mirror, means for adjusting the distance between the reference lens and the mirror and means for measuring the distance between the reference lens and the mirror; a test arm with a test lens; means for dividing the output of the source arm between the test arm and the reference arm; means for combining light reflected back into the reference arm and the test arm to create an interference signal; and means for detecting and analyzing the interference signal.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 24, 2014
    Inventors: Robert Fedosejevs, Ilya Utkin, Sunita Sindhu, Ying Yin Tsui
  • Methods and apparatus for determining fibre orientation
    Patent number: 7829855
    Abstract: Fiber distribution characteristics such as the bulk average orientation of fibers in composite fibrous materials can be evaluated based on the variation in the speed with which polarized electromagnetic signals propagate through the material as a function of angle. The electromagnetic radiation may comprise terahertz radiation. The composite fibrous materials may be wood-containing materials such as oriented strand board or particle board.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: November 9, 2010
    Assignee: University of Northern British Columbia
    Inventors: Matthew E. Reid, Robert Fedosejevs
  • METHODS AND APPARATUS FOR DETERMINING FIBRE ORIENTATION
    Publication number: 20100219343
    Abstract: Fibre distribution characteristics such as the bulk average orientation of fibres in composite fibrous materials can be evaluated based on the variation in the speed with which polarized electromagnetic signals propagate through the material as a function of angle. The electromagnetic radiation may comprise terahertz radiation. The composite fibrous materials may be wood-containing materials such as oriented strand board or particle board.
    Type: Application
    Filed: January 17, 2007
    Publication date: September 2, 2010
    Applicant: UNIVERSITY OF NORTHERN BRITISH COLUMBIA
    Inventors: Matthew E. Reid, Robert Fedosejevs